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How to change values of specific elements inside a matrix?

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darkgod89
darkgod89 2016-6-6
编辑： Azzi Abdelmalek 2016-6-6
I have a 10x10 matrix y. I want to look for all the elements inside y that have a value greater than 100 and divide them by 10. How do I go about this? I was thinking of this if y > 100 y = y./10; end But it doesn't work for someone reason. How can I fix this? Or are there any alternate solutions?

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Azzi Abdelmalek
Azzi Abdelmalek 2016-6-6
编辑：Azzi Abdelmalek 2016-6-6
idx=y>100
y(idx)=y(idx)/10

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